Solve the problem.Find the maximum possible value of f = 2x + 5y subject to the following constraints: 
A. 19
B. 
C. 
D. 10
Answer: B
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Describe the graph of the polar equation.r = -9 csc ?
A. Vertical line through (-9, 0) B. Line through origin with slope -9 C. Circle of radius 9 centered at origin D. Horizontal line through (0, -9)
Evaluate the function at the given values of the variable.f(x) = 6x - 1
a. f(-1)
b. f(-2)
A. -5, -11 B. -6, -12 C. -7, -13 D. 6, 12
Solve the problem.The graph shows the percent of students at a local high school who were enrolled in a foreign language class each school year during the 1980s.
Using an estimate of the percentage to the nearest percent, what is the best estimate for the number of students not taking a language in 1982 if a total of 2590 students were enrolled in the school?
A. 440 students B. 2150 students C. 4662 students D. 390 students
Find the standard-form equation of the ellipse.
A. 
+ 
= 1
B. 9x2 + 4y2 = 1
C. 81x2 + 16y2 = 1
D. 
+ 
= 1